package com.ruoyi.framework.aspectj;

import java.lang.reflect.Method;
import java.util.Map;
import com.ruoyi.common.utils.AddressUtils;
import org.aspectj.lang.JoinPoint;
import org.aspectj.lang.Signature;
import org.aspectj.lang.annotation.AfterReturning;
import org.aspectj.lang.annotation.AfterThrowing;
import org.aspectj.lang.annotation.Aspect;
import org.aspectj.lang.annotation.Pointcut;
import org.aspectj.lang.reflect.MethodSignature;
import org.slf4j.Logger;
import org.slf4j.LoggerFactory;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.scheduling.annotation.Async;
import org.springframework.scheduling.annotation.EnableAsync;
import org.springframework.stereotype.Component;
import com.alibaba.fastjson.JSONObject;
import com.ruoyi.common.utils.ServletUtils;
import com.ruoyi.common.utils.StringUtils;
import com.ruoyi.common.utils.security.ShiroUtils;
import com.ruoyi.framework.aspectj.lang.annotation.Log;
import com.ruoyi.framework.aspectj.lang.constant.BusinessStatus;
import com.ruoyi.project.monitor.operlog.domain.OperLog;
import com.ruoyi.project.monitor.operlog.service.IOperLogService;
import com.ruoyi.project.system.user.domain.User;

/**
 * 操作日志记录处理
 * 
 * @author flyfish
 */
@Aspect
@Component
@EnableAsync
public class LogAspect {
	private static final Logger log = LoggerFactory.getLogger(LogAspect.class);

	@Autowired
	private IOperLogService operLogService;

	// 配置织入点
	@Pointcut("@annotation(com.ruoyi.framework.aspectj.lang.annotation.Log)")
	public void logPointCut() {
	}

	/**
	 * 前置通知 用于拦截操作
	 *
	 * @param joinPoint 切点
	 */
	@AfterReturning(pointcut = "logPointCut()")
	public void doBefore(JoinPoint joinPoint) {
		handleLog(joinPoint, null);
	}

	/**
	 * 拦截异常操作
	 * 
	 * @param joinPoint
	 * @param e
	 */
	@AfterThrowing(value = "logPointCut()", throwing = "e")
	public void doAfter(JoinPoint joinPoint, Exception e) {
		handleLog(joinPoint, e);
	}

	@Async
	protected void handleLog(final JoinPoint joinPoint, final Exception e) {
		try {
			// 获得注解
			Log controllerLog = getAnnotationLog(joinPoint);
			if (controllerLog == null) {
				return;
			}

			// 获取当前的用户
			User currentUser = ShiroUtils.getUser();

			// *========数据库日志=========*//
			OperLog operLog = new OperLog();
			operLog.setStatus(BusinessStatus.SUCCESS);
			// 请求的地址
			String ip = ShiroUtils.getIp();
			operLog.setOperIp(ip);
			// 操作地点
			operLog.setOperLocation(AddressUtils.getRealAddressByIP(ip));

			operLog.setOperUrl(ServletUtils.getRequest().getRequestURI());
			if (currentUser != null) {
				operLog.setOperName(currentUser.getLoginName());
				operLog.setDeptName(currentUser.getDept().getDeptName());
			}

			if (e != null) {
				operLog.setStatus(BusinessStatus.FAIL);
				operLog.setErrorMsg(StringUtils.substring(e.getMessage(), 0, 2000));
			}
			// 设置方法名称
			String className = joinPoint.getTarget().getClass().getName();
			String methodName = joinPoint.getSignature().getName();
			operLog.setMethod(className + "." + methodName + "()");
			// 处理设置注解上的参数
			getControllerMethodDescription(controllerLog, operLog);
			// 保存数据库
			operLogService.insertOperlog(operLog);
		} catch (Exception exp) {
			// 记录本地异常日志
			log.error("==前置通知异常==");
			log.error("异常信息:{}", exp.getMessage());
			exp.printStackTrace();
		}
	}

	/**
	 * 获取注解中对方法的描述信息 用于Controller层注解
	 * 
	 * @param joinPoint 切点
	 * @return 方法描述
	 * @throws Exception
	 */
	public void getControllerMethodDescription(Log log, OperLog operLog) throws Exception {
		// 设置action动作
		operLog.setAction(log.action());
		// 设置标题
		operLog.setTitle(log.title());
		// 设置channel
		operLog.setChannel(log.channel());
		// 是否需要保存request，参数和值
		if (log.isSaveRequestData()) {
			// 获取参数的信息，传入到数据库中。
			setRequestValue(operLog);
		}
	}

	/**
	 * 获取请求的参数，放到log中
	 * 
	 * @param operLog
	 * @param request
	 */
	private void setRequestValue(OperLog operLog) {
		Map<String, String[]> map = ServletUtils.getRequest().getParameterMap();
		String params = JSONObject.toJSONString(map);
		operLog.setOperParam(StringUtils.substring(params, 0, 255));
	}

	/**
	 * 是否存在注解，如果存在就获取
	 */
	private Log getAnnotationLog(JoinPoint joinPoint) throws Exception {
		Signature signature = joinPoint.getSignature();
		MethodSignature methodSignature = (MethodSignature) signature;
		Method method = methodSignature.getMethod();

		if (method != null) {
			return method.getAnnotation(Log.class);
		}
		return null;
	}
}
